Hand boring machine



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HAND BoRING cama Feb. 24. 1925.

Filed March 3, 1923 IMBvTUR EEURBELLLHTEF( Vat Patented Febo 24, 1925.

UNITED STATES llaldd GEORGE WESTON SLATER, 0F NEW GLASGOW, NOVA SCOTIA., CANADA.

HAND BORING MACHINE.

Application filed March 3, 1923.

To all 'whom it may concern:

Be it known that I, GEORGE "WESTON SLATER, a subject of the King of Great Britain, and resident of the city of New Glasgow, in the Province of Nova Scotia and Dominion of Canada, have invented certain new and useful Improvements in Hand Boring Machines, of which `the following is a specification.

This invention relates to improvements in hand boring machines and the objects of the invention are to provide a machine of this kind with which to shorten up and to get more advantage o-f the angles necessary for blasting in solid coal, rock, or the like, and that will, furthermore, enable .the operator to perform efficient work more speedily.

With these and other objects in view, the invention consists essentially in the novel arrangement and construction of parts as described in the present specification and illustrated by the accompanying drawings that form part of the same.

Referring now to the drawings, in which like characters of reference indicate corresponding parts in each figure,

Figure 1 is a side elevation of an embodiment of my invention set up.

Figure 2 is a side elevation, partly in section, showing the means for supporting the boring auger.

Figure 3 is an end view of the supporting bracket, showing the forked pin.

Figure 4 is a section on line 4?-4 of Fig ure 3.

Figure 5 is a perspective detail of the auger, partly in section, through the supporting cup -i member.

Figure 6 is a perspective detail of the supporting bracket for the pin bar.

In the drawings, A represents the tool as a whole, set up ready for operation, and B represents the face of a coal vein or otherwise to be bored or drilled.

The machine A comprises a main auger member 10 with suitable bit 11 at the operating end and provided at the other end with a suitable handle 12 having means 13 and 14: for a two-handed grip thereon.

15 is a pin bar extending into the face of the object to be drilled and supporting adjacent to its outer end a suitable bracket serial No. 622,550.

16. @n this pin bar 15 is mounted a supporting forked member 17 formed with a suitable base 18 through which extends a securing pin 19 designed also to extend through the pin bar 15 and formed with an extension 2O adapted to engage the bracket arm 21 of the bracket member 16 to prevent the weight of the securing pin 19 from being supported by the cotter pin 22 carried thereby. rllhe thread 27 on auger act-s as a thread bar.

23 and 24. are the prongs of the forked member 17 designed to operatively support on each side a sleeve 25 on the auger 10, the grip on said sleeve member being adjustable by means of a screw 26 through the forked member.

From the foregoing, the operation of my device will be apparent. The tool having been set as shown in Figure 1, the operator manipulates with both hands the handle member 12 without devoting all his energy 'to the working of the auger.

As many changes could be made in the above construction and many apparently widely different embodiments of my invention within the scope of the claims constructed without departing from the spirit or scope thereof, it is intended that all matter contained in the accompanying specification and drawings shall be interpreted as illustrative and not in a limiting sense.

llVhat l claim as my invention is:

1. In a hand boring machine an auger member threaded on the outside, a sleeve threaded on the inside adapted to engage with said auger member, means for supporting the sleeve comprising a fork member, a supporting bar having an opening therein registering with an opening in the fork member and a securing pin through said openings, a support bracket for the bar formed with an extension, an extension formed on the securing pin adapted to engage and lock with the said bracket eXtension and means for adjusting the grip of the fork member on said sleeve and means for operating the auger member.

2. A hand boring machine of the character described comprising, in combination with the threaded drilling member, a threaded sleeve adapted to engage longitudinally with said drilling member, a supporting of the fork member and means for operatbar, a 'forked supporting member for Jhe ing the drilling member. l0 sleeve and means for pvotally connecting In witness whereof I have hereunto set the forked supporting member and said bar, my hand in the presence of two Witnesses.

5 a supporting bracket for che bar and means EGRGE VESTON SLATER.

formed on sald bracket adapted to engage Witnesses: Wlth means conneetmg the bar and the 'fork JOHN DoULL,

member and means for adjusting the grip MABEL CUMMING. 

